~ / search / GHSA-hqqc-jr88-p6x2

GHSA-hqqc-jr88-p6x2

Netty QUIC hash collision DoS attack

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-29908

Packages

EcosystemPackageAffectedFixed in
Maven io.netty.incubator:netty-incubator-codec-quic < 0.0.71.Final 0.0.71.Final

Details

As written in the advisory (Markdown source, shown as plain text).

An issue was discovered in the codec. A hash collision vulnerability (in the hash map used to manage connections) allows remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs). See https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory

References

External links from the advisory. They lead to third-party sites.